If prices were identical, I'd buy from Sony so that bookmarks/progress could theoretically sync across my devices although I don't think that works on my T1. However, I tend to buy from Kobo as they are usually cheaper than Sony and more more frequent (and better) coupons. I also occasionally buy from BoB. I found Kobo several years ago when I was doing some price comparisons. If agency pricing will ever go away, it may change the landscape yet again... as someone else mentioned, I use Sony Reader for PC for all my downloads. I then strip DRM and sideload the books to my T1.

I may be mistaken but I think those pricey Twilight titles are audio books; they all seem to have second author names Ilyana Ka... something; I searched the name Ilyana on BoB and came up with Ilyana Kadushin whose name is listed as narrator on a number of books, none of them Twilight titles on the U.S. version of BoB.

Thank you all! Especially MarciaCat. Maybe I will browse for ebooks again. With their discounts it might be worth it

Glad I could help! BoB is my current favorite bookseller; chiefly for offering the lowest price on Star Trek titles, the latest is $5.51 versus $7.35 at Sony, $7.59 at Amazon and full list price of $7.99 at Kobo.

Don't forget that Books on Board also sells Audio Books. If the prices seem high this is probably the reason. Use the Advanced Search which will allow you to search for a specific format with and without DRM.

I've purchased a total of two books from Sony. I usually purchase ebooks from Kobo because their coupons allow me to purchase books on the cheap. Sony doesn't have as discounts and their selection isn't very good either.